I have just learned something I hadn't read about here regarding the problem with PH always rising and having to add acid.
I realize the nature of using destabilized chlorine has an effect on PH levels.
I was trying the method of lowing my TA to below recommended levels to stabilize my PH which is not happening. I have been constantly 80 to 90 TA with PH rising daily until it is over 8.0 ppm again. I added acid to get TA down to 60ppm and PH was at 7.2; PH rose the next day to 7.4 so I didn't aerate no point then 7.6 so I have the same problem.
Today, yes I went to buy chlorine and the owner told me that my TA is two low which is what causes PH bounce and that I need to find my "adjusted TA" which is based on how much CYA I have in my pool. This is the first I have heard this except for here about how CYA effects the chlorine and that you need to take that into consideration when testing and maintaining your chlorine levels.
I did some research online and found this other site describing the same thing regarding "Adjusted TA" in detail and instructions on how to test for it Par Pool & Spa: What is Adjusted Total Alkalinity Basically it's dividing your CYA ppm level by 1/3 and deducting that from your TA test to find the "true Adjusted TA level" In my case "before" I lowered my TA per the method taught here, my TA was 80 and CYA 90 so that would mean my Adjust TA was only 50 ppm before I embarked on lowering my TA more, so now with my TA at 60ppm that would mean my adjusted TA is only 30 ppm which is seriously low now.
I subsequently did find a post today on the subject here and the consensus from the ranking members is dismissing this information as having little to no effect. I don't see any adjustments for this on the "The Pool Calculator" either when I enter 8.0 ph, 90 CYA and 80 TA.
I feel confused now and a little disturbed I can not get the same information from everyone.
I can't seem to keep the PH balanced for more than a couple of days which is between 7.4-7.8 and I go through a lot of acid as a result. I don't add Borate due to pets drink from the pool and not willing to go there.
I realize the nature of using destabilized chlorine has an effect on PH levels.
I was trying the method of lowing my TA to below recommended levels to stabilize my PH which is not happening. I have been constantly 80 to 90 TA with PH rising daily until it is over 8.0 ppm again. I added acid to get TA down to 60ppm and PH was at 7.2; PH rose the next day to 7.4 so I didn't aerate no point then 7.6 so I have the same problem.
Today, yes I went to buy chlorine and the owner told me that my TA is two low which is what causes PH bounce and that I need to find my "adjusted TA" which is based on how much CYA I have in my pool. This is the first I have heard this except for here about how CYA effects the chlorine and that you need to take that into consideration when testing and maintaining your chlorine levels.
I did some research online and found this other site describing the same thing regarding "Adjusted TA" in detail and instructions on how to test for it Par Pool & Spa: What is Adjusted Total Alkalinity Basically it's dividing your CYA ppm level by 1/3 and deducting that from your TA test to find the "true Adjusted TA level" In my case "before" I lowered my TA per the method taught here, my TA was 80 and CYA 90 so that would mean my Adjust TA was only 50 ppm before I embarked on lowering my TA more, so now with my TA at 60ppm that would mean my adjusted TA is only 30 ppm which is seriously low now.
I subsequently did find a post today on the subject here and the consensus from the ranking members is dismissing this information as having little to no effect. I don't see any adjustments for this on the "The Pool Calculator" either when I enter 8.0 ph, 90 CYA and 80 TA.
I feel confused now and a little disturbed I can not get the same information from everyone.
I can't seem to keep the PH balanced for more than a couple of days which is between 7.4-7.8 and I go through a lot of acid as a result. I don't add Borate due to pets drink from the pool and not willing to go there.